Tootfinder

4 #PositiveDinge gestern
- Grillen, auch wenn es nicht so ganz harmonisch ablief
- endlich Feierabend, am dummerweise nicht freigenommenen Brückentag
- mal wieder #Einsingen mit diesem guten Video:

Quantum Transport Protected by Acceleration From Nonadiabaticity and Dissipation
Arnab Chakrabarti, Biswarup Ash, Igor Mazets, Xi Chen, Gershon Kurizki
https://arxiv.org/abs/2506.21462

Quantum Transport Protected by Acceleration From Nonadiabaticity and Dissipation
We put forth a hitherto unexplored control strategy that enables high-fidelity fast transport of an unstable quantum wavepacket even in the presence of bath-induced dissipation. The wavepacket, which is confined within any shallow (anharmonic) potential trap is steered in acceleration, so as to maximize the transfer fidelity. This strategy can generally optimize any non-Markovian bath-dressed continuous-variable system dynamics. It can simultaneously cope with wavepacket leakage via non-adiabat…

Quantum-geometric dipole: a topological boost to flavor ferromagnetism in flat bands
Lei Chen, Sayed Ali Akbar Ghorashi, Jennifer Cano, Valentin Cr\'epel
https://arxiv.org/abs/2506.22417

Quantum-geometric dipole: a topological boost to flavor ferromagnetism in flat bands
Robust flavor-polarized phases are a striking hallmark of many flat-band moiré materials. In this work, we trace the origin of this spontaneous polarization to a previously overlooked quantum-geometric quantity: the quantum-geometric dipole. Analogous to how the quantum metric governs the spatial spread of wavepackets, we show that the quantum-geometric dipole sets the characteristic size of particle-hole excitations, e.g. magnons in a ferromagnet, which in turn boosts their gap and stiffness.…

Can’t wait to see this again. #Dogma
https://youtu.be/rwSRribTgdA?si=WaFwvIZVQ6QcfnmW

🇺🇦 #NowPlaying on KEXP's #Early
Prince:
🎵 When You Were Mine
#Prince
https://situationsmke.bandcamp.com/track/prince-when-you-were-mine
https://open.spotify.com/track/6Kbkge4WbvwWv1jVzSQsr8

Kekul\'e order from diffuse nesting near higher-order Van Hove points
Jonas Beck, Jonathan Bodky, Matteo D\"urrnagel, Ronny Thomale, Julian Ingham, Lennart Klebl, Hendrik Hohmann
https://arxiv.org/abs/2505.22725

Kekulé order from diffuse nesting near higher-order Van Hove points
Translation symmetry-breaking order is assumed to be suppressed by the lack of Fermi surface nesting near certain higher-order Van Hove singularities (HOVHS). We show the anisotropic band-flattening inherent to such HOVHS, combined with broadening of the Fermi surface due to elevated critical temperatures, results in the Fermi surface becoming approximately nested at a wavevector unrelated to the precise shape of the Fermi surface - leading to a $\sqrt{3}\times\sqrt{3}$ Kekulé density wave for…

This is very cool! Someone made a Wallace and Gromit contraption!
https://youtu.be/Wv7WVaoJJ0Y?si=6h30bWgWDeDkTSYY

Unifying renormalized and bare viscosity in two-dimensional molecular dynamics simulations
Kazuma Yokota, Masato Itami, Shin-ichi Sasa
https://arxiv.org/abs/2506.16002

Unifying renormalized and bare viscosity in two-dimensional molecular dynamics simulations
Fluctuating hydrodynamics provides a framework connecting mesoscopic fluctuations with macroscopic transport behavior. To bridge mesoscopic and macroscopic transport from microscopic dynamics, we introduce a wavenumber-dependent viscosity, defined via the equilibrium correlation of time-averaged Fourier components of the fine-grained shear stress field, as a finite-wavevector extension of the Green--Kubo formula. Two-dimensional molecular dynamics simulations reveal its small-wavenumber diverge…

🇺🇦 Auf radioeins läuft...
Kajagoogoo:
🎵 Too shy
#NowPlaying #Kajagoogoo
https://djloic.bandcamp.com/track/kajagoogoo-too-shy-remix
https://open.spotify.com/track/6WEBIVqiEsevfgJefTyuQQ

Spatiotemporal coupled Airy-Airy wavepacket and its propagation dynamics
Zhaofeng Huang, Xiaolin Su, Qian Cao, Andy Chong, Qiwen Zhan
https://arxiv.org/abs/2506.05805

Spatiotemporal coupled Airy-Airy wavepacket and its propagation dynamics
Airy beams, celebrated for their self-acceleration, diffraction-free propagation, and self-healing properties, have garnered significant interest in optics and photonics, with applications spanning ultrafast optics, laser processing, nonlinear optics, and optical communications. Recent research primarily aims at independent control of Airy beams in both spatial and spatiotemporal domains. In a pioneering approach, we have successfully generated and controlled a spatiotemporal coupled (STc) Airy…